/*
 * @(#)DoubleBufferedComponent.java	1.0 Apr 27, 2008
 *
 *	The MIT License
 *
 *	Copyright (c) 2008 Malachi de AElfweald <malachid@gmail.com>
 *
 *	Permission is hereby granted, free of charge, to any person obtaining a copy
 *	of this software and associated documentation files (the "Software"), to deal
 *	in the Software without restriction, including without limitation the rights
 *	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *	copies of the Software, and to permit persons to whom the Software is
 *	furnished to do so, subject to the following conditions:
 *
 *	The above copyright notice and this permission notice shall be included in
 *	all copies or substantial portions of the Software.
 *
 *	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *	THE SOFTWARE.
 */
package org.eoti.swing;

import org.eoti.awt.GraphicsUtil;

import javax.swing.*;
import java.awt.image.*;
import java.awt.*;

public abstract class DoubleBufferedComponent
	extends JComponent
{
	protected int defaultWidth;
	protected int defaultHeight;
	protected BufferedImage doubleBuffer;

	public DoubleBufferedComponent(int defaultWidth, int defaultHeight)
	{
		super();
		this.defaultWidth = defaultWidth;
		this.defaultHeight = defaultHeight;
		this.setSize(defaultWidth, defaultHeight);
		this.setPreferredSize(new Dimension(defaultWidth, defaultHeight));
		this.doubleBuffer = GraphicsUtil.createImage(defaultWidth, defaultHeight);
	}

	public void paintComponent(Graphics g)
	{
		// maybe change this to resize to current dimensions
		GraphicsUtil.drawImage(g, doubleBuffer, this);
	}

	protected abstract void updateBuffer();
}
